This is a truly revolutionary piece of technology, and I am convinced it will become a must-have plugin for all users in the future. However, I have one suggestion: the biggest drawback of this kind of global illumination simulation is that it crudely and uniformly covers the entire character's body. If it could be implemented similarly to a point light source, where brightness attenuates from a central point outward, the visual impact on VAM's realism would be even more devastating.
It turns HDRIs into many points of light around the subject - simulating Key/Direct lights and Fill/GI lights.